You may be exposed to harmful levels of CO in boiler rooms, breweries, warehouses, petroleum refineries, pulp and paper production, and steel production; around docks, blast furnaces, or coke ovens; or in one of the following occupations:

Welder

Garage mechanic

Firefighter

Carbon-black maker

Organic chemical synthesizer

Metal oxide reducer

Longshore worker

Diesel engine operator

Forklift operator

Marine terminal worker

Toll booth or tunnel attendant

Customs inspector

Police officer

Taxi driver.

What can you do if you suspect someone has been poisoned?

When you suspect CO poisoning, promptly taking the following actions can save lives:

Move the victim immediately to fresh air in an open area.

Call 911 or another local emergency number for medical attention or assistance.

Administer 100-percent oxygen using a tight-fitting mask if the victim is breathing.

Administer cardiopulmonary resuscitation if the victim has stopped breathing.

Warning: You may be exposed to fatal levels of CO poisoning in a rescue attempt. Rescuers
should be skilled at performing recovery operations and using recovery equipment.
Employers should make sure that rescuers are not exposed to dangerous CO levels when
performing rescue operations.